Description: 126 / (15) Enclosed Combustion Chamber (16) Jacketed (40) Flue Gas Heat Transfer Fluid(e.g.,Cooking Stove Type) (44) Solid Fuel (45) Combustion Air or Flue Gas Circulation
Hierarchy/Derived subclasses
CIPO search
search just 126/45This will show what classes derive from the input. Ex: entering 78/35 shows the derived classes and the search that can be used to find
patents in those subclasses.